Improvement of Electric Aircraft Endurance through Propeller Optimization via BEM-CFD Methodology

José D. Hoyos, Jesús H. Jímenez, Pablo Alvarado

Producción científica: Contribución a una revistaPonencia publicada en las memorias del evento con ISSNrevisión exhaustiva

Resumen

An exhaustive optimization method is developed to minimize the power consumption for a propeller-driven electrical aircraft. The method finds the optimal value for a wide range of geometrical and operational parameters for a target thrust and airspeed. The optimization routine employs BEM for propeller predictions fed with aerodynamic airfoil data obtained from a proposed combined CFD-Montgomerie method which is also validated, furthermore several corrections to account for compressibility, three dimensional, viscous and Reynolds number effects are implemented. This BEM model showed an adequate fitting with experimental data. Additionally, Goldstein optimization via Vortex Theory is employed to design pitch and chord distributions minimizing the induced losses of the propeller. The optimization algorithm is validated through a study case where an existent optimization problem is approached leading to very similar results. Some trends and insights are obtained and discussed from the study case regarding the design of an optimal propulsion system. Finally, CFD simulations of the study case are carried out showing a slight relative error of BEM.

Idioma originalInglés
Número de artículo012011
PublicaciónJournal of Physics: Conference Series
Volumen1733
N.º1
DOI
EstadoPublicada - 19 ene. 2021
Evento2nd International Conference on Trends in Mechanical and Aerospace, TMAE 2020 - Washington, Virtual, Estados Unidos
Duración: 25 sep. 202027 sep. 2020

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© Published under licence by IOP Publishing Ltd.

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